cos(5x)=5*cos(x)

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Solution for cos(5x)=5*cos(x) equation:


Simplifying
cos(5x) = 5cos(x)

Remove parenthesis around (5x)
cos * 5x = 5cos(x)

Reorder the terms for easier multiplication:
5cos * x = 5cos(x)

Multiply cos * x
5cosx = 5cos(x)

Multiply cos * x
5cosx = 5cosx

Add '-5cosx' to each side of the equation.
5cosx + -5cosx = 5cosx + -5cosx

Combine like terms: 5cosx + -5cosx = 0
0 = 5cosx + -5cosx

Combine like terms: 5cosx + -5cosx = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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